mailrelay.0.website.ws has no CNAME records.
Question and response
Question
dig mailrelay.0.website.ws. NS
Answer
The response has no answer records.
Authority
website.ws. 10800 SOA ns2.ncsdi.ws. hostmaster.ncsdi.ws. 2025051202 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0